High cubic nonlinearity of liquids in the broadband THz spectral range
- Resource Type
- Conference
- Authors
- Zhukova, Maria O.; Melnik, Maksim V.; Tcypkin, Anton N.; Vorontsova, Irina O.; Putilin, Sergey E.; Kozlov, Sergei A.; Zhang, Xi-Cheng
- Source
- 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019 44th International Conference on. :1-2 Sep, 2019
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Refractive index
Liquids
Ultrafast optics
Broadband communication
Nonlinear optics
Optical refraction
Optical variables control
- Language
- ISSN
- 2162-2035
Here we report the direct measurement of the nonlinear refractive index coefficient of liquids by using the Z-scan method with broadband pulsed THz beam. The results fit with conventional Z-scan analytics well. We estimate the nonlinear refractive index coefficient n 2 of liquids through the use of the theoretical treatment that takes the ionic vibrational contribution into account. This estimation correlates with experimental data obtained.